| 摘要: |
| 结合一般的GPS信号捕获算法，提出了一种更为简单快速的GPS信号捕获方法。此方法在1023个码片时间约1ms，可以完成一颗卫星在一个多普勒频移下的全码捕获检测。
FPGA仿真表明，与传统的捕获方法相比，所提方法减少了资源消耗与时间消耗，同时保证了
能在一个C/A码周期内获取一个多普勒频移下的C/A码相位，捕获更简单快速。 |
| 关键词: GPS信号捕获 全码捕获 串行搜索捕获 并行搜索捕获 |
| DOI： |
|
| 基金项目:“北斗”二代卫星接收机双频基带芯片研制项目(BE2009121) |
|
| A simple and fast method for GPS signal acquisition |
| CHEN Xun,YUAN Xing-xing |
| () |
| Abstract: |
| Based on popular GPS signal acquisition methods,a simple and fast method is prop
osed. In about 1 ms, the method can complete a w
holecode detection and acquisition of one satellite in a Doppler frequency shi
ft.FPGA simulation shows in comparison with the traditional acquisition methods
this method not only reduces the consumption of resources and time,but also ensu
res that a Doppler frequency shift of the C/A code phase is obtained in
a C/A code period. The acquisition is more simple and fast. |
| Key words: GPS signal acquisition whole code acquisition serial search acquisition paralle
l search acquisition |
